Hose-splice.



I J. H. BRADNAGK.

HOSE SPLICE.

APPLICATION FILED AUG. 29, 1911.

Patented Jan.6, 1914.

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can ne sixties Parana cation.

JOHN H. BRADNACK, OF NEW HAVEN, CONNECTICUT.

HOSE-SPLICE.

To all whom it may concern Be it known that I, JOHN H. BRADNAoK, acitizen of the United States of Amer1ca, and resident of New Haven, inthe county of New Haven and State of Connecticut, have invented certainnew and useful Improvements in Hose-Splices, of which the following is aspecification.

My invention relates to a hose splice, and has for its object to providea device for readily splicing or connecting parts of hose or flexibletubing in a, continuous conduit.

The invention consists in the novel combination, arrangement andconstruction of parts as hereinafter more fully described and claimed Inthe accompanying drawings forming a part of this specification, Figure 11s a view of two sections of hose and a hose splice embodying myimprovement. Fig. 2 is an end view of Fig. 1. Fig. 3 is a view of twosections of hose coupled together in readiness for splicing, but withthe holding arms of the splicing mechanism spread apart and unfastened.Fig. 4: is an end view of the same. Fig. 5 is a central longitudinalsection through the splicing mechanism without the hose shown ready toreceive the same. Fig. 6 is a cross section of the tubular core of thesplicing mechanism. Fig. 7 is a plan view of the blank for forming theholding part or clasp of the splicing mechanism. Fig. 8 is a lengthwisesection of a core having the bead rolled in without change of thicknessof the metal. Fig. 9 is a view of one of the holding arms shaped to thecurvature of the periphery of the hose.

Referring to the drawings, my improved hose splice is shown to comprisetwo parts, viz., the core or shell 1 upon which the respective pieces ofthe tubing are received and connected, and the holding clasp, which isformed with counterpart series of grappling and binding arms for holdingthe respective parts of the hose upon the core, as hereinafter setforth.

The core or shell 1 comprises a metal tube of sufiicient length to forma substantial bearing for the respective ends of the hose to be joined,and which are tightly forced upon it, with their ends near the centralcross plane thereof. Upon each end of the tube is an external annularenlargement or head 3 soldered, brazed or formed thereon by increase ofthe thickness of the metal on the outside, as shown in Fig. 5, or rolledSpecification of Letters Patent.

Application filed August 29, 1911. erial No. 646,731.

Patented Jan. 6, 1914.

or otherwise formed thereon by curvature or distortion of the sheetmetal from straight longitudinal lines without thickening of the part,as shown in the modification A in Fig. 8, presenting a more or lessabrupt shoulder on the inner side or that toward the central cross planeof the tube, and a tapering or conical surface on the opposite side ormouth of the tube, as shown in Fig. 5. As the hose is of rubber or otherelastic material, it will stretch sufliciently to enable the saidenlargement to pass in to it in the operation of forcing the hose uponthe core, and will collapse again to tightly encircle the neck pf thecore inside the bead, as shown in said The holding clasp is formed ofsheet metal, which in the process of manufacture is first blanked out inthe shape shown in F ig'. 7 comprising the central collar or annularpart 4. adapted to fit upon the core 1, with the arms 5 radiatingtherefrom, and the small tongues 6 projecting interiorly from thecollar. Said tongues are designed to be bent over at right angles to theplane of the collar, that is parallel to its axis, alternatelyprojecting in opposite directions, and forming a proportionatelyextended bearing for the collar upon the tubular core. The collar is tobe placed upon the core prior to the enlarging of its ends to form thebeads 8, which are larger than the bearing of the collar, and itsposition is ordinarily at the central cross plane of the core, midway ofthe ends thereof.

The radiating arms 5 of the clasp, forming the hose binding and holdingparts of the device, are also bent over alternately in oppositedirections from the original plane of the sheet metal, or cross plane ofthe core when the clasp is placed thereon, and their ends are bent overat right angles to the arms, projecting toward the axis forming thehooks 2. Said arms are at first bent over to an angle intermediate ofthe cross plane and axis of the core as shown in Figs. 3, 4 and 5. -Withthe arms standing at such an angle oblique to the axis of the core therespective sections of hose 7 to be joined may be forced upon the core,over the beads thereof, until their ends are substantially or nearly injuxtaposition with the annular part of the clasp, located near themiddle cross plane of the core. Then, in the operation of splicing theparts the arms may be bent flat down upon the hose as shown in Figs. 1and 2 with the hooks embedded therein to hold the tubing against endwisestrain thereon. With the arms thus bent down the splice is completed,and the parts of the hose will be as securely connected together as ifmade lntegral.

As an article of manufacture the device will be supplied to the tradeformed as shown in Fig. 3 and will then be applied by general users inmending hose, the only imple jections 9 may be raised on the core, asshown in Fig. 8, to engage the tongue 6. When the device is galvanizedor tinned such process operates to hold the parts together as ifintegrally soldered thereto.

The clasp, with the arms 5 in the position shown in Fig. 3, forms a veryeffective grip for firmly holding the core in one hand while the hosesections are being forced upon it by the other. Thus the core may betwisted or wrung as the hose is drawn upon it, and the parts forcedtogether in very tight contact. The arms are proportioned as to lengthsuitably to engage the tubing with their hooked ends 2 just back of thebeads 3, which also tends to hold the hose securely on the core, and thehooks may be serrated as shown.

As the core is continuous from one end to the other it provides a tightjoint at the meeting ends of the hose, which can not leak after the arms5 are forced down solidly upon them. The respective series of arms arealso joined together integrally, so that in the mechanism other thanthat between the respective sections of the tubing.

It will be'seen that the blank shown in Fig. 7 and which is at first aperfectly flat piece of metal of substantially circular shape, providesall the partsof the completed clasp, and is easily formed by firstremoving the wedgeshaped areasbetween the exteriorly radiating arms, andthe central area having the interiorly projecting tongues, and thenbending the arms from the plane of the plate in alternate directions andthe tongues also in alternation to form a substantial bearing for theplate on the i shell. There is little waste of metal in this process,and the completed product comprises a very compact, neat and easilyapplied device. 7

I claim as my invention:

1. A hose splice comprising in combination a tubular shell for thereceptionof the hose sections, and a hose grapple comprising an annularplate received upon the shell termed with contiguous externallyrajdiating arms which are alternately bent down in opposite directionsfrom the plane of the plate for engagement with the hose sections andhooked to indent the surface thereof, and internal projections bent outin opposite directions to provide an extended bearing of the plate uponthe shell.

2. A hose splice comprising in combination a tubular shell adapted forinsertion into the ends of the hose sections, having an enlargement ateach end, and a hose grapple comprising an annular plate formed withcontiguous externally radiating arms which are alternately bent down inopposite directions from the plane of the plate for engagement with thehose sections and hooked to indent the surface thereof, and internalprojections bent out in opposite directions to provide an extendedbearing of the plate upon the shell.

Signed by me at New Haven, Conn, this 25th day of August, 1911.

JOHN H. BRADNACK. Witnesses:

GEORGE L. BARNES, OHARLEs SPREYER.

Oopicl of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

- Washington, I). G.

